# HALOWERK Calmar-Kennzahl Rechner

> HALOWERK Calmar-Kennzahl Rechner is a paid API for AI agents from handel.halowerk.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-17).

Computes the Calmar ratio (CAGR divided by maximum relative drawdown) from a supplied equity curve and holding period in years

## Facts

- Endpoint: POST https://handel.halowerk.com/v1/rechner/calmar?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-calmar-kennzahl-rechner-fb4b9ec6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jhwneu1wGM6qkERnBit6P

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability halowerk-calmar-kennzahl-rechner-fb4b9ec6 -d '<json body>'
```

Example prompt: Calculate the historical Calmar ratio for this equity curve over 3.5 years: [100, 108, 103, 117, 111, 125, 119, 134] — I need the CAGR divided by the maximum relative drawdown.

## When to prefer this

Use this endpoint when you already hold a time-series equity curve and a known holding period in years and need the Calmar ratio computed deterministically with no external data dependencies. It is ideal for automated strategy evaluation, backtesting pipelines, and reporting workflows where you supply all figures yourself. Prefer it over general-purpose analytics platforms when you need a lightweight, pay-per-call micro-computation with no broker access or data subscription required.

## Known failure modes

- Equity curve array has fewer than 2 items — minimum length required
- years value is zero or negative — must be a positive non-zero number
- All equity curve values are identical — maximum drawdown is zero, causing division by zero
- Equity curve contains non-numeric values — schema validation failure
- years exceeds maximum allowed value — overflow guard triggered
- Missing required fields — HTTP 422 validation error

## How this service works

Historische Calmar-Kennzahl. CAGR / relativer maximaler Drawdown; gelieferte Zeitdauer in Jahren, kein Mindestzeitraum angenommen. Alle Zahlen, Kurse und Vorgaben liefert der Aufrufer. Keine eigenen Kursdaten, kein Brokerzugriff, keine Ausführung. Rechenwerkzeug, keine Anlageberatung, keine Empfehlung.

## Output

Returns the computed Calmar ratio (CAGR divided by the maximum relative drawdown) derived entirely from the caller-supplied equity curve and years value. No external market data is fetched; all figures come from the input. The result is a pure numerical calculation with no advisory or recommendation component.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "years": {
   "type": "number",
   "maximum": 1000000000000,
   "minimum": 1e-12
  },
  "equity_curve": {
   "type": "array",
   "items": {
    "type": "number",
    "maximum": 1000000000000,
    "minimum": -1000000000000
   },
   "maxItems": 5000,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-calmar-kennzahl-rechner-fb4b9ec6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from handel.halowerk.com](https://www.zero.xyz/host/handel.halowerk.com/llms.txt)